# What is a open circle sign in math?

**What is a open circle sign in math?**. Are You sir & mam own that kind of inquiry?, If do then plz get the best tips below:

What is a open circle sign in math? Thank you very much.

**Isaiah**

A 2 dimensional continuos curved line where every point is the same distance from the center.

**slide55g**

You can count on me to multiply the percentage of happiness that you are ? then make a smiley face out of math symbols.

**jkloveswesties**

This is the sign for empty set in set theory. Empty set is the set which has not any element.

**sevdalinim06**

It may mean multiply especially if it looks like this:16×84=…..

**kingkittenzan**

That symbol is called “null” and it means “nothing” or “none.”.

**philippians45**

If it is a dot and not a “0” it mean multiply.

**lslocklavette**

It implies a multiplication between x and y.

**raul_cipriano**

It is the null sign – mean not or nothing.

**tsls4288**

“A Piece Of The Pi”.

**demama2008**